Radiologic parameters indicate spontaneous passage of ureteral stones in acute renal colic patients.
Background: Ureteral stones are a common cause of acute renal colic, and while most small stones pass spontaneously, reliable predictors of passage are needed to optimize patient selection for conservative management. This study aims to evaluate the role of radiologic, clinical and laboratory parameters—particularly the proximal/distal (P/D) ureteral diameter ratio—in predicting spontaneous passage of
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Üntan et al. (2026) studied this question.
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